A mining dump truck and its adjustable air volume ventilation cooling system and method

Abstract

A mining dump truck and its adjustable air volume ventilation and cooling system and method, the cooling system includes an upper air duct, a throttling device, a front air duct, a blower, a rear air duct, an electric control cabinet, a main generator and a rear axle housing; , the front air duct is set between the electric control cabinet and the main generator, the rear air duct is set between the blower and the rear axle housing, the main generator is connected to the blower; the upper air duct is located above the front air duct and connected to the blower, It is used to supplement a large amount of air volume; the throttling device is connected to the front air duct to supplement the air volume, and the air volume can be dynamically adjusted according to needs; the air volume flows from the upper air duct, the throttling device and the front air duct to the main generator, and then enters through the blower The rear air channel flows to the rear axle housing, and after cooling the traction motor, the heat is lost to the atmosphere. The present invention designs a ventilating and cooling system with adjustable air volume by adding an upper air channel and a throttling device, so as to solve the problem that the existing ventilating system has insufficient air intake and cannot be dynamically adjusted according to the operating environment of the mine car.

Description

technical field [0001] The invention relates to a ventilating and cooling system with adjustable air volume for a mining dump truck, in particular to a ventilating and cooling system with a throttling device and adjustable air flow, which belongs to the field of mining machinery. Background technique [0002] In the powertrain of the whole electric wheel mining vehicle, the radiator is mainly used for cooling the diesel engine, while the heat dissipation of the electric control cabinet, the main generator and the traction motor is mainly realized by the ventilation cooling system. [0003] There are two main heating elements of the electric control cabinet, namely the inverter and the rectifier. A dedicated ventilation and cooling system, in addition, the heat of the main generator and traction motor also needs to be taken away for heat dissipation. [0004] According to the electric transmission structure and the requirements of heat dissipation equipment, the existing ele...

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Problems solved by technology

[0005] Such a ventilation system is designed for the specific operating environment of the mine car. However, the use environment of the mine car customer is not limited to a specific area. When the use environment changes and the original design heat dissipation of the mine car cannot meet the requirements, the designer needs to re- Calculating the heat dissipation of each device in the current environment and modifying the ventilation system takes a long time and costs a lot, resulting in insufficient flexibility in the use of mining vehicles and difficulty in exerting the best performance

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